Software alternatives for solo businesses

Find a cheaper or better-fitting tool for the job. Search 58 tools across 12 categories, filter by free plan, price and platform, and compare up to three side by side. Every price comes from the vendor's own pricing page, with the date we checked it.

Your comparison

ChatGPTGrammarly
PriceGo $8 a month and Plus $20 a month in the US; Pro $200 a month. Plus has no yearly billing option.Pro $12 a month (the page didn't say whether that's billed yearly or monthly), with 2,000 AI prompts per member a month.
Free planFree tier available to everyone, with usage limits on the most capable models. OpenAI says it will test ads on the Free and Go tiers in the US.Free spelling and grammar checks, tone detection and 100 AI prompts a month. Full-sentence rewrites and tone adjustment need Pro.
Best forGeneral writing help, from emails and outlines to social posts.Anyone who writes client emails and proposals and wants a safety net for mistakes.
Works onWeb browser, Windows, Mac, iPhone and iPad, AndroidWeb browser, Windows, Mac, iPhone and iPad, Android, Browser extension
Open sourceNoNo
Pros
  • The most widely used AI assistant
  • Cheap Go plan for more usage
  • Works in your browser, email and documents
  • Free version catches most typos
Cons
  • Ads being tested on the free tier in the US
  • Check data controls before pasting client information
  • Rewrites and tone changes are Pro-only
  • Reads what you type, so check its privacy settings for client work
Key features
  • Chat-based writing and editing
  • File and image understanding
  • Web search
  • Custom GPTs
  • Spelling and grammar checks everywhere you type
  • Tone detection
  • AI prompts (100 a month free)
  • Plagiarism and AI-text detection (Pro)
LinksAlternatives
ChatGPT website
Alternatives
Grammarly website

Prices checked on the official pricing pages on . Prices are in US dollars and can change at any time.

Clear comparison

Alternatives guides

Head-to-head comparisons

Related guides on The Solo Toolbox

How we choose and check these tools

  • Prices and free-plan limits come from each vendor's own pricing page, and every tool shows the date we checked it. When a vendor's page didn't show a price, we say so instead of guessing.
  • We list tools a one-person business can actually use: a plan for a single user, a sensible starting price, and a track record.
  • No paid placements. Vendors can't pay to be listed or to rank higher. If we ever use an affiliate link, it's labelled on the page.
  • We haven't run long-term tests of every tool, so the pros and cons describe what the official documentation and pricing show, not hands-on reviews.

Spotted a price that has changed? Tell us and we'll recheck it. Read more in our editorial standards.